Skyhooks
the story of helicopters
Bibliographic details
Summary
Presents the versatile helicopter: its development, principles of flight, and uses as air taxi, rescue vehicle, traffic control center, crop duster, skyhook and in industry or war.
the story of helicopters
Presents the versatile helicopter: its development, principles of flight, and uses as air taxi, rescue vehicle, traffic control center, crop duster, skyhook and in industry or war.